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Views: 2639 | Replies: 2
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Join Date: Aug 2007
Posts: 2
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Solved Threads: 0
Newbie Poster
dropdownlist disable other dropdownlist Hi Guys
I'm a newbie in asp.net and I want to disable dropdownlist1 in my form when value "no" is selected from the <asp:ListItem> of dropdownlist2. How can I achieve that? Thanks for reply. BTW I'm using C# language.
Finch
I'm a newbie in asp.net and I want to disable dropdownlist1 in my form when value "no" is selected from the <asp:ListItem> of dropdownlist2. How can I achieve that? Thanks for reply. BTW I'm using C# language.
Finch
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Join Date: Jun 2006
Location: India
Posts: 6,858
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Solved Threads: 344
A very simple and crude snippet:
I would leave to you the job of putting those bunch of statements in a separate function and changing the way the function is called as per your requirement.
<select name="first" id="first" onchange="if(this.value == 'no') document.getElementById('sec').disabled=true; else document.getElementById('sec').disabled=false;">
<option value="yes">Yes</option>
<option value="no">No</option>
</select>
<br /><br />
<select name="sec" id="sec">
<option value="yes">Yes</option>
<option value="no">No</option>
</select>I would leave to you the job of putting those bunch of statements in a separate function and changing the way the function is called as per your requirement.
Last edited by ~s.o.s~ : Aug 21st, 2007 at 11:58 am.
I don't accept change. I don't deserve to live.
Happiness corrupts people.
Failing to value the lives of others cheapens your own.
Happiness corrupts people.
Failing to value the lives of others cheapens your own.
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Join Date: Aug 2007
Posts: 2
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Rep Power: 0
Solved Threads: 0
Newbie Poster
Thank for your help mate.
Problem is that solution is perfect for html form, not asp.net - therefore I cannot use it within <br> and <td> tags in asp form. I also cannot use method onchange, web developer says that it is no supported by dropdownlist. Any ideas how to trick it? Thanks a lot for your time.
Finch
Edit: Here's the code I want to change:
<asp:View ID="View4" runat="server">
<table cellpadding="4" cellspacing="4">
<tr>
<td colspan="2"><b>Section 3 - Health and Safety Policy and Arrangements</b></td>
</tr>
<tr>
<td>3.1 Does your company have a written Health and Safety Policy?</td>
<td><asp
ropDownList ID="HealthPolicy" runat="server" >
<asp:ListItem></asp:ListItem>
<asp:ListItem>No</asp:ListItem>
<asp:ListItem>Yes</asp:ListItem>
</aspropDownList>
</td>
</tr>
<tr><td>If yes, please provide us with copy of your health and safety policy. Please go to section 3.3. If No, please answer question 3.2</td></tr>
<tr>
<td>3.2 Does your company employ 5 or persons?</td>
<td><aspropDownList ID="Employ5" runat="server" Enabled="False" >
<asp:ListItem></asp:ListItem>
<asp:ListItem>No</asp:ListItem>
<asp:ListItem>Yes</asp:ListItem>
</aspropDownList>
</td>
</tr>
Problem is that solution is perfect for html form, not asp.net - therefore I cannot use it within <br> and <td> tags in asp form. I also cannot use method onchange, web developer says that it is no supported by dropdownlist. Any ideas how to trick it? Thanks a lot for your time.
Finch
Edit: Here's the code I want to change:
<asp:View ID="View4" runat="server">
<table cellpadding="4" cellspacing="4">
<tr>
<td colspan="2"><b>Section 3 - Health and Safety Policy and Arrangements</b></td>
</tr>
<tr>
<td>3.1 Does your company have a written Health and Safety Policy?</td>
<td><asp
ropDownList ID="HealthPolicy" runat="server" ><asp:ListItem></asp:ListItem>
<asp:ListItem>No</asp:ListItem>
<asp:ListItem>Yes</asp:ListItem>
</asp
ropDownList></td>
</tr>
<tr><td>If yes, please provide us with copy of your health and safety policy. Please go to section 3.3. If No, please answer question 3.2</td></tr>
<tr>
<td>3.2 Does your company employ 5 or persons?</td>
<td><asp
ropDownList ID="Employ5" runat="server" Enabled="False" ><asp:ListItem></asp:ListItem>
<asp:ListItem>No</asp:ListItem>
<asp:ListItem>Yes</asp:ListItem>
</asp
ropDownList></td>
</tr>
Last edited by finch : Aug 21st, 2007 at 5:46 pm.
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